Nasir-ud-Din Mahmud

Padishah Mahmud of Delhi Sultanate (1225-1266) was the padishah of the Mamluk dynasty of the Delhi Sultanate from 1246 to 1266, succeeding Padishah Masud of Delhi Sultanate and preceding Padishah Balban of Delhi Sultanate.

Biography
Mahmud was born in 1225 to Sultan Mahmud of Bengal. He was from the House of Delhi, a dynasty of Sunni Muslim Turks that ruled over the Delhi Sultanate (nicknamed the "Mamluk dynasty" because its leaders were slave-soldiers). When Padishah Masud of Delhi Sultanate began to act as a tyrant, Masud was overthrown by the chiefs and Mahmud replaced him. He strictly followed monogamy unlike his predecessors, spending most of his time writing down Quran verses. He sold the handwritten copies and used the money for personal expenses, and he had no servants; his wife had to cook for the family.